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Questions tagged [aeronautical-charts]

For questions relating to navigation charts, but not performance charts.

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2answers
142 views

Stadium game at Miami blocking runways? [duplicate]

So I was looking for the Miami In in SkyVector and I saw this. Apparently a stadium game has the power to block runways in (At least in US). What is really going on there? I am not well acquinted ...
4
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1answer
68 views

What are the historical precedents of today's E2 and E4 airspace? (US)

What are the historical precedents of today's E2 and E4 airspace? From what previous airspace classes did these airspaces evolve? How do these precedents help us understand the significance of the ...
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0answers
60 views

In the US, can airspace simultaneously be E2 and E4? What happens at KSTC to the airspace in the dashed magenta boundary when the tower closes?

In the US, can the same airspace simultaneously be E2 and E4? Consider the case of KSTC -- St. Cloud Regional Airport, MN. http://vfrmap.com/?type=vfrc&lat=45.546&lon=-94.059&zoom=10 On ...
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2answers
92 views

Can the Class-E-to-surface airspace at Eagle County Regional airport KEGE be ignored when the tower is open?

Can the Class-E-to-surface designation indicated by the dashed magenta lines outside the dashed blue circle at Eagle County Regional airport KEGE be ignored when the tower is open? http://vfrmap.com/...
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2answers
67 views

Measurement discrepancy on vfrmap dot com sectional — is the grid wrong?

At Nome Alaska-- KOME-- the E2 airspace (dashed magenta line) is listed as extending 13.2 (nautical) miles east of the airport-- according to this source page E-9 -- https://www.faa.gov/...
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1answer
51 views

Considering all US untowered airports, what is the furthest distance that E2 airspace (dashed magneta line) projects from the airport?

Considering all US untowered airports (50 states), what is the furthest distance that E2 airspace (dashed magneta line) projects from the airport for which it is designated? Measure from the middle ...
3
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2answers
130 views

Why are KACV and KTLV depicted differently on sectional charts than KSGU, KBIH, and KTPL, even though each is E2 w/ E4 extensions?

This question specifically is about non-towered airports surrounded by round circles of E2 airspace, with one or more "extensions" of E4 airspace that abut the E2 airspace. Therefore it is not the ...
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1answer
45 views

Has there been a recent change in the airspace configuration at KFYV— Drake Field near Fayetteville AR?

Has there been a recent change in the airspace configuration at KFYV-- Drake Field near Fayetteville AR? If so, where can we find an official description of that change? KFYV -- Drake Field airport ...
7
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1answer
250 views

What is the primary reason that the non-towered airports KACV and KTLV have E4 extensions to E2 airspace?

NOTE-- this question is not about why it was desired to protect the airspace that ended up within the E4 "extensions". Rather, this question is about why that was done by designating that airspace as ...
4
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1answer
248 views

Why do TACANs not have a symbol for compulsory reporting on IFR Enroute Low Altitude charts?

I am studying the IFR Enroute Low Altitude legend, and I noticed that all NAV Aids other than TACAN have a compulsory reporting point icon. Edit: Plot twist: They do appear on the STAR/DP legend. ...
3
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1answer
54 views

Why does V165 have two different MEAs over the same route section?

Why does V165 have two distinct MEAs which vary by a large factor (apart from the 180$^{\circ}$ rule of altitudes) considering they would be clearing the same obstacles and receiving signals from the ...
2
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3answers
59 views

Why are some legs of a SID considered transitions, even when there's only one?

For example, consider the BAYPO8 departure from Tampa (KTPA). The CAMJO waypoint is the final waypoint on a rather linear route that does not contain other final waypoints. The second page of the FAA ...
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2answers
81 views

Why there is a 'MACH' in this Compressibility Correction Chart?

I couldn't find what 'Mach 1.0' and 'Mach 0.8' are trying to indicate in the middle of the chart. Can anybody explain about this please?
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1answer
2k views

What is “(CFMCC)” on an ILS approach chart?

I'm studying the ILS or LOC RWY 3 approach chart for KMKC. I'm trying to figure out what "(CMFCC)" at the runway means. Is it a computer navigation aid?
8
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2answers
263 views

Where is this VFR reporting point (“Water Tank” near Thousand Oaks, CA) in real life?

I was looking at the VFR sectional near Thousand Oaks, California. The chart has a "WATER TANK" labeled, but I see many water tanks in Thousand Oaks on the Google Maps satellite view. Does anyone ...
6
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1answer
157 views

What is the purpose of this interesting pattern of class E airspace in northwest Alaska?

Perusing SkyVector today I noticed this airspace pattern: It can be viewed in more detail here. I what immediately jumped out at me is that there are no charted airports in any of this airspace; ...
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2answers
200 views

What is the radius of a VOR compass rose on a VFR sectional chart?

I thought I read somewhere that it was 10 nautical miles. Does anyone have a reference on whether that's the case or not? I'd like to use the measurement of a compass rose to aid in my estimation of ...
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0answers
43 views

Aerodrome category, certification?

I need to know how you tell the certification of new airport just built? how can you tell if airport is certified for International flights or not? approved for intl flights or not meeting ...
17
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2answers
4k views

What do these white on red words indicate on a London Heathrow taxiway chart?

What do the words in white block capital letters over a red background denote on this aerodrome chart of LHR?
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0answers
342 views

What does “ACFT MAX 65/7 ” means on lido charts?

What does "ACFT MAX 65/7" on the minima box means? I found out that its related to wingspan and some vertical distance, but I still didn't get the vertical distance thing !!
3
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1answer
279 views

What are the differences between blue airports and green ones on the low en-route chart?

As far as I know, a brown airport on the low en-route chart does not have an approach procedure but blue and green airports do. But what exactly are the differences between these colors?
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0answers
144 views

What does the letter J mean at the start of an FAA instrument approach chart identifier?

To identify a specific Instrument Approach Chart in either the FAA Terminal Procedures Publication (TPP), or the Department of Defense (DoD) Terminal Low Altitude (TLA) Charts, the FAA uses what they ...
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7answers
9k views

What does the “DO NOT USE FOR NAVIGATION” indication mean?

Sometimes when I'm browsing IAC charts online I find a "DO NOT USE FOR NAVIGATION" notice printed on the chart. Not always though. For example, have a look at the chart for Queenstown RNAV (RNP) Y ...
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1answer
2k views

What does 00 mean on a sectional below the airport runway information?

What does 00-50 mean on the sectional chart under PHNL (see picture)?
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0answers
56 views

Is there any example of a US VFR sectional chart containing both a reference to “Class E” airspace, and to older terminology for the same airspace?

Is there any example of a US VFR sectional chart whose legend describes the airspace depicted by the thin dashed magenta line both as "Class E" or "Class E airspace", and also with the older ...
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2answers
131 views

Re old (1993) US VFR sectional charts— when did the term “Class E” first appear?

When did the phrase "Class E" or "Class E airspace" first appear on the legend of US VFR sectional charts, to identify the meaning of the thin dashed magenta line? I'd like to narrow down the date as ...
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3answers
105 views

Re old (1992) US VFR sectional charts— when was the thin dashed magenta line first used?

When did the thin dashed magenta line, currently used to illustrate Class-E-to-surface airspace, first appear on the legend of US VFR sectional charts? I'd like to narrow down the date as precisely ...
4
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1answer
235 views

If an approach chart says “GPS required”, do I need GNSS capability to fly it?

If an aircraft is /Y, /C, or /I (RNAV no GNSS), can they fly an approach chart that says "DME/DME/IRU or GPS required"? GPS in my mind is a GNSS. If you don't have DME/DME/IRU and are RNAV (non-GNSS) ...
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2answers
546 views

What does the letter “D” next to the VOR frequency and name mean?

In most charts there is the letter D next to the VOR freq. What does this mean? I assume the H and L in brackets in other charts mean high and low VORs (correct me if im wrong). But what does the D ...
4
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1answer
551 views

What are the VOR channels used for?

I'm looking at different VORs on a sectional chart and I see the frequencies but I also see a channel number associated with them as well. What are these channel numbers and how do you use them?
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4answers
400 views

How does one determine the elevation on a sectional?

(Refer to figure 21) How does one determine the elevation variation of the light tan area between Minot (area 1) and Audubon Lake (area 2)? A. 2,000 ft to 2,500 ft MSL. B. 2,000 ft to 2,700 ft ...
4
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1answer
501 views

Where is V15 and how do I find it?

My question: Where is V15 and how do I find it? The question referred to in the practice test: Refer to the figure 21, area 2 below: What is the floor of controlled airspace along V15? The ...
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3answers
102 views

What time do NOS IFR Charts expire?

My charts have 13 September 2018 on them. What time do they expire? I thought at Midnight that night local time, but have been unable to find any corroborating evidence.
4
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1answer
865 views

Does anyone know what this approach chart symbol is?

Does anyone know what the little “shell” like symbol on the taxi diagram is, under the 2239? Also, what do the little “P”s stand for? One is bolded and the other is not. The 'shell' and the two 'P's ...
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2answers
938 views

What is the role of an intermediate fix?

There are the IAF and the FAF, which has clear roles. One is where you start the approach and the other where you start to descent and end the approach. But what is the purpose of an Intermediate fix?
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1answer
186 views

Is ATC clearance or permission required to fly helicopter routes and transitions in the Los Angeles area?

Skyvector has Los Angeles helicopter charts here and here. Are pilots required to obtain ATC clearance or permission to fly helicopter routes and transitions?
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2answers
2k views

What does “MERMA” mean on the Los Angeles TAC chart?

Just wondering what "MERMA" means on the Los Angeles TAC chart:
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2answers
208 views

Why are some non-towered airports charted with an empty circle?

Guntly Memorial Airport (62C) is shown as an empty circle with four hash marks around the edges. Why is it empty versus some of the other airports around (such as 96C, C89, BUU, etc.) that have a ...
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3answers
1k views

Is there a difference between a chart and map?

Does the use or meaning of "chart" or "map" vary worldwide? Is there a difference between a chart and map?
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0answers
64 views

What are some of the bigger differences world wide in VFR charts?

While discussing Aviation Charts in this SE question, JanHudec & Jwentin commented that VFR chart symbols are not internationally standardized - including airspace names and procedures. What are ...
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1answer
370 views

What does “ATS climb gradient” mean?

On a Jeppesen SID chart, the climb gradient is not standard, because it's greater than 3.3%. What specifically does the ATS (7.4%) climb gradient mean?
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1answer
104 views

What is the difference between the red and black box identifiers on UK airport charts?

On UK airport charts like the one below for Manchester (EGCC), what is the difference between an identifier with white lettering on a red square and one with yellow lettering on a black square with a ...
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1answer
87 views

Are there downloadable versions of the Canadian VNC and VTA charts?

Are there PDF versions of Canadian VNC and VTA charts available for download? I fly in Australia where airservices lists them on their website so I was hoping to find something similar for Canada.
2
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1answer
1k views

What does AOE on the sectional chart mean?

What does the AOE notation on the sectional stand for? This appears at the bottom of the information for an airport as the final line.
4
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1answer
92 views

What is the technical name for the “time boxes” on an instrument approach plate?

Some instrument approach plates include a list of groundspeeds and times from the FAF to the MAP. What is the real name for these time boxes?
2
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1answer
1k views

How do I find the floor of controlled airspace on sectional charts?

So, I understand finding floors and such when seeing something a fraction like 45/10 or 39/SFC, but I've been reviewing and gotten a couple of questions that look like this: What is he floor of the ...
3
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1answer
381 views

What do these numbers and symbols on the ICAO SIGMET chart represent?

Anybody who can identify the numbers and alphabets in the red, green, and purple circles on the chart above?
11
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3answers
471 views

How many airport charts do airline pilots have in the cockpit?

I always wonder how many "backup" approach charts and airport diagrams airline pilots have in case the plane has to divert. I imagine a few possibilities: There are no approach charts in the cockpit. ...
7
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1answer
577 views

When is this Class D airspace not Class D airspace?

The Terminal Area Chart (TAC) shows the Class D airspace for Los Angeles International Airport (KLAX) view the full TAC. I have highlighted in green the north and south portions of the Class D ...
6
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1answer
2k views

What does the “D” symbol mean on this instrument approach chart?

What does the "D" symbol mean on this approach plate in the airport diagram section (bottom left of plate)?